Individual has gained pertinent vendor certifications to bolster his or her effectiveness, such as: HVAC (Liebert, Trane, etc.), UPS / Inverter Vendor Certifications (Liebert, Alpha, etc.), Transport Vendor Certifications and Training (Aurora, Cisco, ARRIS, etc.). Get to Know Us Charter Communications is known in the United States by our Spectrum brands, including: Spectrum Internet®, TV, Mobile and Voice, Spectrum Networks, Spectrum Enterprise and Spectrum Reach.